Process and mechanism for rolling special shapes.



iT. H. IVIATHlAS.

PROCESS AND MECHANISM FOR ROLLING SPECIAL SHAPES.

2 griefs-SHEET 2.

Patented Mar APPLICATION FILED FEB. 8 1909.

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THOMAS H. MATHIAS, OF BUFFALO, NIEVV YORK, ASSIGNOR'TO LACKAWANNA STEELCOMPANY, OE' NEW YORK, N. Y., A CORPORATION 0F NEW YORK.

PROCESS AND MECHANISIVI FOR ROLLING SPECIAL SI-IAPES.

Specification of Letters Patent.

Patented Mar. 21, 1916.

Application led February 8, 1909. Serial No. 476,703.

To all lwhom t may concern:

Be it known that I, THOMAS H. MATHIAS, a citizen of the United States,residing at Buffalo, in the county of Erie and State of New York, haveinvented new and useful Improvements in Processes and Mechanism forRolling Special Shapes, of which the following is a specification.

My invention relates to a train of rolls formed with a new and improvedset of passes, whereby the sections of a new and peculiar steel sheetpiling are rolled complete from the billet. The pile sections inquestion are of the so-called double interlock type and are providedwith short thickened iianges or thumbs projecting on one side at eachend of the web, and with long, tapering, curved flanges called guards orfingers projecting at each edge on the side opposite to the thumbs andcurved outwardly beyond the short flanges, to form with the lattergrooves for interlocking along each edge ofthe section. To roll thissection presents a peculiar problem l. for the rolling millsuperintendent and has been successfully accomplished by forming andarranging the rolls as here described, whereby these peculiar sections,with long flanges on one side, may be rolled on comparatively a smalltrain of rolls.

By the first passes the section is roughed into shape, that is, thebloom is rolled down into the H form and the web and extensions Uthereonworked out; next both extensions on one side are worked out in livepasses into the completerflanges, so far as size is concerned, whileboth the opposite extensionsare held in' dead passes and there more orless compressed into what we call bumps, which are the rudimentary partsfrom which the completed hooks or thumbs are formed; next the flangesare held in dead passes while the bumps are being formed as to shape andsimultaneously bent out as to position into the thumbs of the completedsection; finally the flanges are bent outwardly in the last pass beyondthe hooks to form the completed guards. The pile section is lthencomplete and ready for use as it comes from the rolls. In the last passit is desirable that a guide be used to hold the flange in position tobe bent outwardly, more or less to inclose the hook. The web ismaintained throughout parallel to the axis of the rolls.

The drawings herewith illustrate the forms of my rolls and in sectionthe form of the bar as it is progressively shaped.

Figures 1, 2 and 3 are vertical longitudinal sectional views showingrespectively the first and second stand of roughing rolls and the standof finishing rolls. Fig. 4 is a front elevation of the rolls forming thefinishing passes, particularly to show the arrangement of the guides.Figs. 5 and 6 are respectively a front elevation and a side elevationwith the rolls in section.

Three high rolls as indicated are used and these are comparativelysmall, a desirable size being about 26%; inch pitch diameter for the topand bottom rolls and4 27 pitch diameter for the middle roll.

The bloom, preferably of H shape, is first roughed into shape in passesl and 2, wherein the bumps a and the opposite flanges b are somewhatworked out and the web thinned. In the next-passes 3 and 4, the bumpsare held while the flanges are being worked out in live passes. At thesame time the fianges are outwardly curved or flared to obtainsufiicient length. In pass 5, being the first of the second roughingstand, the bumps are still held, the web is worked down to its finalthickness and the flanges are bent substantially parallel andsubstantially at right angles to the web; the flanges are now completeso far as size is concerned.

flanges are held unchanged in dead passes, while in the live passes thebumps are being shaped into the hooks or thumbs of the completedsection. In pass 6 the bumps are .bent outwardly; in pass 7, they aremaintained substantially in the same position and are shaped to someextent; in pass 8 they are bent somewhat farther into final position andsimultaneously their shaping is completed as the finished thumbs. Thesection is now ,finished except that the flanges must be bent outwardlybeyond the hooks to form the pockets or grooves. This is done in passes9 and 10. Pass 9 as shown is formed to bend outwardly the tips of theanges while the final pass 10 bends the flanges beyond the hooks anddown, as shown to complete the pile section.

In Figs. 4, 5 and 6 are illustrated guides suitably supported which aredesirably employed in connection with each of the passes to present thesections true to the rolls, also mandrels, or mandrel-guides, tocoperate with the final pass 10 tc insure the true and uniform curvatureof the flanges in the iinished piling. As shown, the side guides 12-12are spaced to receive between them the section to guide it, whereby itis deliveredat a right angle to the rolls in correct relation to thepass, while upper and lower pass-guides 14 and 15 are arranged to form aguideway for the passage of the section between them to present thesection to the passes in correct vertical alinement therewith. Theguides are all supported by the rest-bar 1 6 arranged to extend acrossthe rolls and parallel thereto; the side-guides 12 rest directly thereonand are securely clamped in position by bolts 18-18, said bolts passingupwardly through the clamping plates 20 beneath the rest bar, throughthe side guides and through the upper pass guide supporting plate 21.

22 are the securing nuts on the upper ends of the bolts.

The upper pass guide 14 is secured and supported on the upper supportingplate 21 nal pass, can be adjusted laterally on the.

rest-bar relative to the passes.

To assist the final pass 10 in the formation of the curved guards oranges, it is found desirable to employ a mandrel 25 preferably taperingas shown and arranged to extend between the rolls of the final pass,

to insure the uniform curvature of the anges; this result beingaccomplished by the relatlve formation of the rolls and mandrel wherebythe flanges are bent over the mandrel as best shown in Figs. 5 and 6.

Two mandrels 25 are provided for the formation of the opposite curvedflanges, the

mandrels being secured on the side guides able recesses formed in theguides and by Securing bolts 26 fitting slots 27 in the side guides; avertical adjustment of ther mandrels is thus permitted. Rigidly to'maintain the mandrels Ain adjusted position and to relieve the securingbolts thereof fromstrain spacing wedges 28 may be inserted in the`recess above and below the mandrel.

In Fig. 4 is illustrated the general arvenient and accurate presentingof the work to the rolls together with means to insure ,the uniformcurvature of the flanges for the accurateformation of the grooves, whichresults in a successful solution of the problem presented for the easyand economical manufacture of a piling obtainiu certain advantages byits peculiar forrnatlon.v

The peculiar rolls here described may be modified and used in whole orin part to produce modiedshapes for various purposes.

Having thus described my invention what I claim is,- l

1. In an apparatus for rolling interlocking sections of'steelsheet-piling having the edges correspondingly formed each with a shortflange and along flange for interlocking with the flanges on the edge ofan adjacent similarly formed section, said short flanges extending onone side of the section and said long anges on the other side, rollsprovided with suitable passes first to form the long flanges, then toform the short flanges and finally to hold thev short flanges and bendthe long ianges outwardly and simultaneously to form grooves forinterlocking along both edges of the rolls and in combination therewithmandrel guides to be inserted at the last pass between the vrolls fromone side and between the flanges at the edges to control the size andshape of the groove while the long flanges are being bent.

2. The method of rolling vinterlocking sheet piling sections having longanges extending on one side of the web and short flanges on the otherwhich consists in passing the bloom between rolls provided with suitablepasses to form the long flanges while holding the bumps for the shortanges in dead' passes, with otherA suitable passes next to form thebumps into the short iianges,l and with other suitable passes finally tobend the short and the long Iianges into positionfto form grooves forinterlocking along each edge -of the completed section.

3. The method of rolling interlocking sheet piling sections having atleast one edge of the web yformed with a long iange exi2. D

iiange on the other, which consists in passing .the heated bar betweenrolls provided with tending on one side of the web and a short suitablepasses rst to form the long iianges while holding the bumps for theOshort anges in dead passes, with' other suitable passes next Ito formthe bumpsinto the short flanges and to bend them into position, and withother suitable passes next to bend the long flanges outwardly to extendbeyond the short anges and to-form grooves for interlocking along eachedge of the completed section.

4. The method of rolling from H-shaped billets, interlocking sectionsfor steel sheet piling having long flanges on one side of the web andshort flanges or hooks on the other, which consists in passing theheated bar between rolls provided with suitable passes first to work outthe flanges on one side of thepbillet and the bumps on the other sideand to thin the web, next to work out and to curve outwardly the flangeswhile holding the bumps in dead passes, next to straighten the flangessubstantially parallel and to reduce the web to its final thicknesswhile holding the bumps in dead passes, next to shape the bumps into thehooks and to bend them into final position while holding the flanges indead passes, and finally to bend the flanges outwardly with the flangetips extending beyond the hooks to form grooves along each edge of thesection for receiving the hooks of adjacent sections.

5. The method.) of rolling interlocking sections of steel sheet pilinghaving the edges correspondingly provided each with a long flange and ashort flange for forming an interlocking groove along eaclh edge, whichconsists in passing the heated bar between rolls provided with suitablepasses first simultaneously to form the long flanges, with othersuitable passes next simultaneously to form the short flanges,

and with other suitable passes finally tol hold the short flanges and tobend the long flanges simultaneously to form the grooves.

6. The method of rolling metal sheet pil- .ing sections having the edgesof the web correspondingly provided each with a long flange and a shortflange for forming an interlocking groove on each edge, which consistsin passing the heated bar between rolls 'provided with suitable passesfirst simultaneously to form the long flanges, with other suitablepasses next' simultaneously to form the short flanges, and with othersuitable passes finally to bend the long flanges simultaneously to formthe grooves, the web of the section being maintained parallel to theaxis of the rolls during the entire rolling operation.

7. The method of rolling metal sheet piling sections having the edges ofthe section web correspondingly formed each with a long flange and ashort flange and an interlocking groove within the flanges, whichconsists in passing the heated bar between rolls provided with suitablepasses, first to form the long flanges, next to hold the long flangessubstantially parallel and form the long flange, next to form the shortflange,

and finally to -hold the short flange and to bend the long flangeoutwardly to form in coperation with the thumb a groove, said flangesbeing held in the final pass by a mandrel guide to be inserted betweenthe rolls from one side to hold theshort flanges and to control thebending of the long flange.

9. The method of rolling interlocking steel sheet piling sections havingtwo long flanges extending on one side of the web, one adjacent eachedge, and two corresponding short flanges extending on the other side,one adjacent each edge, which consists in passing the heated bar throughrolls provided with suitable passes first to form the long flangessimultaneously and to hold the rudimentary short flanges in dead passes,next to form the short flanges simultaneously with laterally 'elongatedheads and to hold the long flanges unchanged in dead passes, next tobend the short flanges into position, and finally to bend the longflanges toward the short flanges to form interlocking grooves along theedges of the completed section of Sullicient size to receive the headsof the short flanges but with throats narrower than the length of thesaid heads.

10. A machine for forming interlocking sheet piling sections having bothedges similarly formed with long curved flanges extending on one side ofthe web andshort hooked flanges extending on the other, comprisingopposing rolls formed with a series of passes, the first series havingdead grooves in one roll to hold the bumps for the short flanges,opposing convex portions or collars on the two rolls to engage with andwork down the web, and outwardly curved live grooves between theopposing rolls to engage with and work out the long flanges;

the next series having dead grooves in one roll for the bumps, oppositecollars to work down the web and straight live grooves to work down thelong flanges and to bend them substantially straight; the next serieshaving collars for .the web, dead grooves in one roll to hold the longflanges unchangedand shortlive grooves to roll down the bumps into thecomplete short flanges and to bend said short flanges outwardly; thenext series having collars for the web,

dead grooves to hold the short flanges unchanged and open groovesopposite said dead grooves to engage with the iange and curve itoutwardly, and a nal pass having collars for the web, dead grooves tohold the hooks and open dead grooves opextending on one side of the weband short hooked flanges extending on the other, comprising opposingrolls formed with a series of passes, the first series having deadgrooves in one roll to hold the bumps for the two short iianges,opposing convex portions or collars on the two rolls to engage with andwork down the web, and outwardly curved live grooves between theopposing rolls to engage with and work out the long iianges; the nextseries having dead grooves in one roll for the bumps, opposite collarsto work down the web and straight live grooves to work down the longianges and to bend them substantially straight; the next serieshavinglcollars for the web, .dead grooves in one roll' to hold the longflanges unchanged and short live grooves to roll down the bumps into thecomplete short ianges and to bend said short flanges outwardly; the nextseries having collars vfor the web, dead grooves to hold the short angesunchanged and open grooves oppo-l site said dead grooves, said opengrooves extending into the roll substantially at right angles to itsaxis and having two sides, the outer sides being substantially straightand the inner sides curved to engage with the iange and curve itoutwardly, and a final pass having collars to engage with the web, deadgrooves to hold the hooks and open grooves' opposite thereto, thelattergrooves being shallower than the preceding

